Search

Background: Hidradenitis suppurativa (HS) is a chronic inflammatory disease of the hair follicle which presents with painful nodules, abscesses, and fistulae in apocrine gland-bearing areas of the skin. Approved treatments include antibiotics and biologic drugs such as adalimumab. Despite these treatments, HS management is challenging. Acitretin is an oral retinoid used for its management as 3rd or 4th line therapy. There is little evidence regarding the effectiveness and safety of acitretin treatment for HS, and no reports have previously explored the potential clinical predictors associated with the response to the treatment. Methods: Retrospective cohort study to assess the effectiveness and safety of acitretin treatment in HS patients who failed to respond to topical therapies. Results: Sixty-two patients with moderate to severe HS were included. A significant decrease in the International HS Severity Scoring System (IHS4) score was found over time. Higher basal IHS4 score, family history of HS, follicular phenotype, and history of follicular plugging conditions were potential predictors of response. Most patients did not suffer any adverse events, and no severe side effects were observed. The main cause of discontinuation was lack of efficacy. Conclusion: Acitretin can be considered as a therapeutic option for patients with HS. The presence of follicular phenotype or a history of components of follicular occlusion syndrome is associated with better outcomes.

Chronic Spontaneous Urticaria (CSU) leads to a decreased quality of life in patients because of pruritus and skin lesions. However, there is still little evidence on the impact that a worse sleep quality could have on the quality of life and emotional disorders in these patients. The aims of the present study are to analyze the potential impact of sleep quality on the quality-of-life and emotional status of patients with CSU. A cross-sectional study of 75 CSU patients was performed. Socio-demographic variables and disease activity, quality of life, sleep, sexual disfunction, anxiety, depression and personality traits were collected. A majority of 59 of the patients suffered from poor sleep quality. Sleep quality impairment was associated with worse disease control, greater pruritus and swelling and poorer general and urticaria-related quality-of-life (p < 0.05). Patients with poor sleep quality showed an increased prevalence of anxiety (1.62-fold) and depression risk (3.93-fold). Female sexual dysfunction, but not male, was found to be linked to poorer sleep quality (p = 0.04). To conclude, sleep quality impairment in patients with CSU is related to poor quality-of-life, worse disease control and higher rates of anxiety and depression. Global management of the disease should take sleep quality into account to improve the care of CSU patients.

Background: Surgery is an essential part of hidradenitis suppurativa (HS) treatment. Understanding and reducing surgical recurrence are crucial to obtaining the best results in patients’ treatment. Objective: The aim of the study was to characterize surgical recurrences in a cohort of patients with HS treated with wide excision and second-intention healing. Methods: A prospective nested case-control study was conducted. A cohort of patients with HS treated with wide excision and second-intention healing was monitored for 68 weeks. The surgical procedure was classified as case (recurrence) or control (no recurrence). The type of recurrence was classified according to the elementary lesion in tunnel or abscess and inflammatory nodule (AN) recurrence. Sociodemographic and clinical data likely related to recurrence and the type of recurrence were evaluated. Results: Sixty-three patients were included, receiving a total of 82 surgical procedures. The mean age of the patients was 36.18 years, and the surgical site presented a Hurley stage II severity in 79.26% (65/82) of the interventions. Tunnel recurrence was observed in 8.5% (7/82) and AN recurrence in 15.85% (13/82) of the interventions. Obesity was associated with a higher risk of recurrence, for both tunnel and AN recurrence. Hurley III at the surgical site, a history of pilonidal sinus, and higher International Hidradenitis Suppurativa Severity Score System (IHS4) after surgery and at week 68 increased the risk of tunnel recurrence. Conclusion: We propose classifying surgical recurrence based on the elemental type of lesion. Tunnel recurrence could originate in the depth of the surgical scar and could be associated with both surgical site factors and inflammatory load. AN recurrence could originate in the borders of the surgical scar and may particularly benefit from preoperative ultrasound.

Hidradenitis suppurativa (HS) is an inflammatory chronic disease with difficult management. In some scenarios, intralesional (IL) treatments could be useful. However, the scientific evidence available is limited and heterogeneous. We aimed to synthesize the available scientific evidence on IL treatments in HS. We conducted a systematic review in July 2021. The clinical databases reviewed included MEDLINE and Embase. All types of epidemiological studies and case series with at least 10 patients were included; reviews, guidelines, protocols, conference abstracts, case series with less than 10 patients, and case reports were excluded. Fifteen articles representing 599 patients and 1,032 lesions were included for review. Corticosteroid injections were the most reported treatment. They showed effectiveness for the treatment of acute inflammatory lesions and fistulas in terms of reduction of lesion counts, symptoms, and signs of inflammation and were safe in general terms. Light-based therapies were the other main treatment group, including photodynamic therapy and 1,064-nm diode laser. They were also effective, but more local and systemic adverse events were reported. Other treatments included botulinum toxin type B and punch-trocar-assisted cryoinsufflation (cryopunch). They were effective and safe, although were reported anecdotally. The main limitation of the systematic review was the general quality of the articles included. In conclusion, IL treatments such as corticosteroid injections and light-based therapies seem to be effective and safe for both acute inflammatory lesions and fistulas, although more prospective studies, with higher sample sizes and with standardized outcomes are needed to provide more scientific evidence on the subject.

espanolLa membrana de la cascara del huevo ha sido considerada durante mucho tiempo como un material de desecho. Sin embargo, estudios recientes han demostrado su utilidad para diferentes propositos, como las aplicaciones biologicas. En el presente trabajo, se ha realizado un estudio para identificar los componentes principales de la membrana de la cascara del huevo y para determinar la posibilidad de usarlo como un biomaterial en ingenieria tisular. Para ello, se cultivaron fibroblastos en una membrana de cascara de huevo y luego se realizaron analisis histologicos e histoquimicos. Los resultados muestran no solo la presencia de colageno y proteoglicanos, sino tambien la viabilidad de las celulas dentro de la membrana. Estos resultados revelan el potencial de la membrana de la cascara del huevo para ser utilizado como biomaterial en ingenieria tisular. EnglishThe eggshell membrane has been long time considered as a waste material. However, recent studies have shown its usefulness for different purposes such as biological applications. In the present work, a study has been carried out to identify the eggshell membrane main components and to determine its feasibility for being used as a biomaterial in tissue engineering. Fibroblasts were cultured in eggshell membrane and then histological and histochemical analysis were performed. Results show not only the presence of collagen and proteoglycans, but also the viability of cells inside the membrane. These results revealed the eggshell membrane potential used as a biomaterial in tissue engineering.